Not going to judge you by your story but you can find the audio driver by going to dell's driver support. I did the job for you: http://support.dell.com/support/downloads/driverslist.aspx?c=us&cs=19&l=en&s=dhs&os=WW1&osl=en&catid=&impid=&SystemID=INS_PNT_1501
Hope this solves everything. Scroll down to audio and download the driver. If it doesn't tell you to restart your computer after installation, I would do it anyway.